Envelop-sealing machine.



PATENTED MAY 15, 1965.

J. A. MARKGE.

ENVBLOP SBALNG MAGHNE.

APPLIUATXON FILBB APR. 1. H305.

Wiz/176.55m, Y @4F @my PATENTE!) MAY l5, i966,

J. A. MARKOB.

BNVELQP sEALNG MACHINE.

AIPLCATION PILB) AR. MN5.

Y 3 SHEETS-SHEET 2,

www* i uw www UNITED STATES PATENT OFFICE.

ENVELOP-SEALiNG MACHINE.

Specification of Letters Patent.

resented. May 15, 1906.

Application lcd pril l, 1905. Serial No. 253,265.

To wZ whom, may concernr Bc it known that l, Jol-1N A. Mannes, a citizen of the United States, residing at White Bear, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in EnvelopSealing Ma chinos; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I

My invention ,relates to envelop/#sealing machines, and has for its object to'improve the same in View of simplicity asrteiiiciency.

To these enos the invention cohsists of the .novel devices and combinations of devices Vpair of upright frame-plates or brackets 2,

that are rigidly tied together, as shown, by four tie-roos 3, 4, 5, and 6. The enveiops are delivered over an inclined deck, made up of a plurality of inclined rods 7 that are tied togprther at their ends by thin plates 8 and 9.

orkin over the lower ends of this inclined feed-dec is a plurality of rubber-faced feedwheels 10, carried by a shaft 11, iournaled in and projecting throu h the bearing-plates 2. rIhis shaft 11 is prov ded at one end with a sprocket 12 and et its other end with a gear 13. The feedwhecls 10 work in vertical planes midway between the rods of the incl ined deck. Above the wheels 1G is a watertrough 14, which is attached at its ends to the bearing-plates 2.

The numeral 15 indicates a water-supplying tank, which, as shown, is detacbably rested on the tie-rod. 5 and on one edge of the water-trough and is provided with a depending discharge-neck 16, which when turned into the trough automatically maintains the level of the water in the trough. This water-tank 15 when removed and turnedupside down may be filled with Water introduced lthrough its neck 1.6. A

Working in the trough 14 and projecting into the Water thereof is a moistening-roller 17, preferably of rubber. The shaft of this roller 17 is journaled in the bearing-plates 2 and is provired at one end with a sprocket 18, over which and the sprocket 12 of Lthe Working in frictions] contact with' the mary moistening-reiler 17 is a secon ar moistening-roller 20, the shaft of which 1s preferably mounted in bearing-boxes 21, that are adjustably seated in the bearing-plates 2 and are subject to thrust-screws 22, by means of which the two rollers 17 and 20 may be pressed together under any desired tension.

Mounted to slide on the rods 7 of the inclined feed-deck undenthe action of gravity is a follower-,head made up of an inclined plate 23, end brackets 24, and tie-bars 25, which tie-bars are notched at their under ed es to iit the upper portions of said rods 7.

he envelope z are arranged in a pack with their ilaps and bodies in annular arrangement, as shown in Fig. 3, and their body portions are inserted between the follower-plate 23 and the adjacent side of the Water-trough 14. The mucila ed surfaces of the iiaps of the envelops will e subjected in succession to the secondary moisteningroiler 20 and will be moistened to the deslred extent. Said secondary roller, it will be noted, always engages with the flap of the innermost envelo the lower edge of the bodyY portion of which is in engagement with the iced-wheels 10. Under rotation of the feed-Wheeis 10 the one envelo after the other will be carried from the stac over the lower ends of the inclined rods 7 of the feed-deck, and the follower-head under the action of gravity will move downward, so as to always maintain the cnvelops in a ciosely-pressed ack.

The envelo s ed from the pack by the feed wheels 10 wil be delivered onto one member 26 of a pair of sealing-rollers 26 27. The axes of the shafts of the two rollers 26 and 27 lie approximately in the plane of the inclined feed-deck made up ci' the rods 7. The shatt of the roller 26 is jeurnaled in the bearing-plates 2, and at one end is provided with an operating-lever 28, and at its other end with a spurgear 29, which latter meshes with the spurgear 13 of the feed-shaft 11. The shaft of the relier 27 is journaled in bearing-boxes 30, that are slidably mounted in the bearingplates 2 and are subject to springs 31 on said side plates, which springs yieldinglv press the roller 27 toward the rol er 26. From a feed-shaft 11 runs a sprocket-chain 19. y

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